Windows 10 platform has just published a trial version, there is no specialized ad network which solely works on Windows 10 app ads. I am using DesktopAd advertising SDK now, I have tested my apps on Windows 10, the ads work well on Won10 platform as well. If your apps work on both Windows 8.1 and Windows 10 platforms, you can consider using DesktopAd SDK, it supports Windows 10 well. Hope my answer could help you.